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Math Flashcards

7 cards from real BECE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Math flashcards as text
  1. A triangle has angles measuring 50° and 70°. What is the third angle?

    Answer: 60°

    Angles in a triangle sum to 180°; 180 − 50 − 70 = 60°.

  2. What is the LCM of 4, 6, and 8?

    Answer: 24

    The smallest number divisible by 4, 6, and 8 is 24.

  3. Express 0.045 as a fraction in its simplest form.

    Answer: 9/200

    0.045 = 45/1000; simplify by dividing by 5 twice: 9/200.

  4. If y = 2x − 3, what is y when x = 5?

    Answer: 7

    Substitute x = 5: y = 2(5) − 3 = 10 − 3 = 7.

  5. A bag contains 3 red, 4 blue, and 5 green balls. What is the probability of picking a blue ball?

    Answer: 1/3

    Total = 12 balls; P(blue) = 4/12 = 1/3.

  6. What is the perimeter of a square with side 9 cm?

    Answer: 36 cm

    Perimeter of a square = 4 × side = 4 × 9 = 36 cm.

  7. Evaluate: 5! (5 factorial)

    Answer: 120

    5! = 5 × 4 × 3 × 2 × 1 = 120.